Allow Gnu gcc's to build python on OSX by removing -Wno-long-double,

-no-cpp-precomp, and -mno-fused-madd from configure.
 * r22183 added -no-cpp-precomp, which
   http://gcc.gnu.org/ml/gcc/2005-12/msg00368.html claims hasn't been
   needed since gcc-3.1.
 * r25607 added -Wno-long-double to avoid a warning in
   Include/objimpl.h (issue 525481). The long double is still there,
   but OSX 10.4's gcc no longer warns about it.
 * r33666 fixed issue 775892 on OSX 10.3 by adding -mno-fused-madd,
   which changed the sign of some float 0s. Tim Peters said it wasn't
   a real issue anyway, and it no longer causes test failures.
Fixes issue #1779871.

diff --git a/Misc/NEWS b/Misc/NEWS
index ccb7baabcb82e0a46908d57d7b6cc9d8f2c42e13..47f8df14c3c7e206914b38ae31558fbb131f2f2d 100644 (file)
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,10 @@ What's New in Python 2.6 alpha 2?
 Core and builtins
 -----------------
 
+- Issue #1779871: Gnu gcc can now build Python on OS X because the
+  flags -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd are no
+  longer passed.
+
 - Add a warning when asserting a non-empty tuple which is always true.
 
 - Issue #2179: speed up with statement execution by storing the exit method

diff --git a/configure b/configure
index d634f6f800cad6c4eb1230a386d8576f368abbaf..c7f605874dfae16e9dd71ad6817696518c68978c 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 60765 .
+# From configure.in Revision: 61234 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for python 2.6.
 #
@@ -4538,7 +4538,8 @@ echo "${ECHO_T}$ac_cv_no_strict_aliasing_ok" >&6; }
            ;;
        # is there any other compiler on Darwin besides gcc?
        Darwin*)
-           BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp -mno-fused-madd"
+           # -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd
+           # used to be here, but non-Apple gcc doesn't accept them.
            if test "${enable_universalsdk}"; then
                BASECFLAGS="-arch ppc -arch i386 -isysroot ${UNIVERSALSDK} ${BASECFLAGS}"
            fi

diff --git a/configure.in b/configure.in
index e7318253da1e50ab480b63fd7c7f612584d535b8..767766ce45cfb539ae2e373a88acb44bdb410559 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -823,7 +823,8 @@ yes)
            ;;
        # is there any other compiler on Darwin besides gcc?
        Darwin*)
-           BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp -mno-fused-madd"
+           # -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd
+           # used to be here, but non-Apple gcc doesn't accept them.
            if test "${enable_universalsdk}"; then
                BASECFLAGS="-arch ppc -arch i386 -isysroot ${UNIVERSALSDK} ${BASECFLAGS}"
            fi